发明名称 Sun shield for a hard hat
摘要 This invention relates to removable hat brims in general, and more specifically to a sunshield specifically designed to be used in the construction trades and adapted to frictionally and resiliently engage a hard hat to provide shade beyond that normally provided by the protective headgear.
申请公布号 US4316289(A) 申请公布日期 1982.02.23
申请号 US19800138056 申请日期 1980.04.07
申请人 HILD, MELVIN O. 发明人 HILD, MELVIN O.
分类号 A42B3/22;A42B3/32;(IPC1-7):A42B1/20;A42B3/00 主分类号 A42B3/22
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